Internal-combustion engine.



T. J. FAY.

INTERNAL COMBUSTION ENGINE.

APPLICATION FILED AUG-2,1913.

Patented July 4, 1916;

2 SHEETS-SHEET I.

T. J. FAY.

INTERNAL COMBUSTION ENGINE.

APPLICATION FILED Auc.2, 1913.

1,189,928. v V Patented July 4, 1916.

2 SHEETSSHEET 2.

71/4 35 5555 J/Z/EU/UR 7 2Z/ Maxg THOMAS J. FAY, 0F BROOKLYN, NEW YORK,ASSIGNOR TO THE GOBY ENGINE.

COMPANY, A CORPORATION OF OHIO.

T 0 all whom it may concern v Be it known that I, THOMAS J. FAY, acitizen of the United States, residing at Brooklyn, in the county ofKings and State of New York, have invented a certainnew and usefulImprovement in Internal-Combustion Engines, of which the following is afull, clear, and exact description, reference being had to theaccompanying drawings.

This invention relates to internal combustion engines and moreparticularly to the valve mechanism therefor, the valve mechanism beingof the general type shown in the application of Clifford S. Goby forLetters Patent of the United States No. 514,098, filed Aug. 23, 1909. Inthe aforesaid application, a valve of the sliding sleeve type is shown,the sliding sleeve valve being interposed between an outer cylindricalvalve casing and an inner lining sleeve or bushing having an abutmenttherein.

It is the object of the present invention to provide valve mechanism ofthe aforesaid type wherein means are provided for efli ciently coolingthe internal sleeve or liner and wherein the leakage of combustiblefluids and gases of combustion is largely prevented.

A further object of the invention is to provide valve mechanism of thistype which is comparatively simple of construction and economical andefficient in operation, Which is easily assembled and disassembled, andwhich is capable of efficient lubrication.

Further and more limited objects of the invention will appearhereinafter, and the invention may be described further andmore-generally as consisting of the combinations of elements embodied inthe claims hereto annexed and illustrated in the drawings forming parthereof, wherein:

Figure 1 represents a vertical sectional view through an enginecylinder, the valve mechanism, and part of the crank case, and showingthe driving connection between the engine shaft and the valve or layshaft;

and Fig. 2 a sectional view corresponding to the line 22 of Fig. 1.

Describing by reference characters the various parts illustrated herein,1 denotes the crank case and 2 the cylinder of an internal combustionengine, an engine of the fourcycle type being illustrated herein. Whilebut a single cylinder is shown and described Specification of LettersPatent.

Application filed August 2, 1913.

inder.

Patented July a, was.

Serial No. 782,582.

for clearness of illustration and facility of description, it will beappreciated by those skilled in the art that a multi-cylinder engine maybe employed and that my invention as herein disclosed is equallyapplicable to such an engine, such application being within the skill ofthe mechanic.

3 denotes a piston mounted in the cylinder, 4 the connecting rod, 5 theengine crank shaft and 6 the Wristpin for the connecting rod. Projectingfrom the crank case 1 is a lay-shaft chamber 7, and located Within saidchamber is the lay shaft 8, the lay shaft being driven from the enginecrank shaft 5 by any suitable reduction gearing-sprockets 9 and 10 and achain 11 being shown for this purpose. In the embodiment of theinvention illustrated herein, a 2 1 reduction drive from the engineshaft is provided.

Surrounding the cylinder 2 is a water jacket shell 12, preferably castwith the cyl- Also cast with the cylinder and with the water jacketcasing is a cylindrical valve shell or casing 13 having its axisarranged at an angle to the axis of the cylinder 2 and communicatingintermediate of its ends with the cylinder by means of a duct 14. Twosuch shells or casings 13 will be used, one for the inlet fluid and theother for the exhaust fluid, and the duct 14 will preferably be made ofsuch width and shape as to communicate with both valve casings, in sub-.

stantially the same manner as shown in my applications hereinbeforereferred to.

Reciprocably mounted in each valve shell or casing 13 is a slidingsleeve valve 15 which is connected to the lay shaft 8 by means of acrank arm 16 and-a link 17, the parts being proportioned so that the topof the valve sleeve 15 will be brought below the bottom of' the duct 11while the crank arm 16 is passing its lower center, at which time theduct 14 will be in communication with the interior of the valve andparticularly with the interior of the liner sleeve.

The liner sleeve is made conveniently in two sections, 18 and'19. Thepart 19 is shown as threaded into the upper end of the valve casing 13and is provided with a flange 20 adapted to abut against the top of thecasing. The lower end of the section 19 is closed by an abutment 21which is located immediately above the duct 11.

The sleeve section 19 is of sufficiently smaller diameter than the valvecasing 13 to provide an annular space 22 therebetween, said space beingof sufficient Width to receive therewithin, with proper clearance, theupper end of the valvesleeve 15. The lower sleeve section 18 is mountedWithin the valve sleeve and is shown as angularly deflected at its lowerendsee 18 being provided at the end of its deflected portion with aflange 23 which is adapted to abut against the wall of the casing 7. Asimilar flange 24 is carried by the cotiperating duct 25 for the exhaustor inlet fluid (as the case may be), the said duct and the lower end ofthe sleeve section being. secured in place by means of screw bolts 26extending through the flanges 23 and 24: and threaded into the casingThe upper end of the inner or liner sleeve 18 terminates a sutficientdistance from the abutment 21 to provide therewith an annular port 27within the interior of the inner sleeve, which port registers with theduct 14L when the valve sleeve 15 is in its lowermost positionwhen thecrank 16 is passing its lower center. The wall of the valve casing 13which is opposite the cylinder is outwardly deflected to provide a fluidspace 28 which is in communication with the duct 14 and which enablesthe pressure within the cylinder and the duct 14: to be equalized aroundthe valve sleeve 15, to prevent binding.

The water jacket casting 12 is extended around the valve casin 13,whereby the cooling liquid may be circulated around said casing, and theupper end of the sleeve section 19 is in free communication with thisspace, whereby the upper liner section 19 and the abutment 21 aresubjected to the cooling action of this liquid. The casing has anopening above and registering with the upper end of-the upper linersection 19, said opening being provided with a remov able cover 29whereby access may be had to the section 19, permitting its convenientinsertion and removal.

A spark plug 30 of any approved construction is shown in the head of thecylinder, and an oil supply pipe 30 projects through the casing 7 abovethe lower portion of the valve sleeve 15 and is adapted to supplylubricant to the lower portion of said sleeve and to the outer surfaceof the liner section 18.

With the parts arranged and constructed as described, it is believedthat the operation will be clear. The combustible fluids will enter thecylinder above the top of the sleeve 15 of the inlet valve and thefluids'of combustion will escape above the top of the correspondingsleeve of the exhaust valve. The annular space 22 provides a trapwherein the atmosphere and the gases of combustion will be compressed bythe sliding valve sleeve 15 and thus prevent leakage of the in let andexhaust fluids. The amount of compression may be adjusted, if desired,or may be made constant.

Having thus described my invention, what I claim is 1. In an internalcombustion engine, the combination, with a cylinder, of a valve casingadjacent to the cylinder and provided with a port intermediate of itsends communicating with the cylinder, a sliding sleeve valve mountedwithin the casing, a liner section within one end of the valve casingand extending from such end to a point adjacent to the port and thereprovided with an abutment, there being an annular space provided betweensuch section and the casing for the reception of the sleeve of thevalve, a separate second liner section inserted within the opposite endof the valve casing and having its end spaced from the abutment toprovide a port adapted to register with the first mentioned port, and afluid connection communicating with the second liner section.

2. In an internal combustion engine, the combination, with a cylinder,of a valve casing having a port intermediate of its ends communicatingwith said cylinder, a liner section mounted in one end of the casing andextending from such end substantially as far as saidport and providedadjacent to the port with an abutment, there being an annular spaceprovided between said section and said casing, a second liner sectionprojecting into the valve casing from the opposite end and spaced fromthe abutment to form a port adapted to communicate with the valve casingport, a fluid connection communicating with the interior of said secondsection, and a sliding sleeve valve surrounding the second liner sectionand interposed between the same and the valve casing, there being awater jacket surrounding the valve casing and communicating with theinterior of the first men tioned liner section.

3. In an internal combustion engine, the combination, with a cylinder,of a valve casing having a port intermediate of its ends communicatingwith said cylinder, a liner section mounted in one end of the casing andextending from such end substantially as far as said. port and providedadjacent to the port with an abutment, there being an annular spaceprovided between said section and said casing, a second separate linersection projecting into the valve casing from the opposite end andspaced from the abutment to form a port adapted to communicate with thevalve casing port, a fluid connection communicating with the interior ofsaid second section, and a sliding sleeve valve surrounding the secondliner section and interposed between the same and the valve casing.

t. In an internal combustion engine, the

combination, with a cylinder, of a valve casing adjacent to the cylinderand provided with a port intermediate of its ends communicating withsaid cylinder, a liner sleeve section projecting into the interior ofsaid casing from one end thereof and having an abutment adjacent to saidport and forming with the casing an annular space, a second linersection within and secured to the opposite end of the valve casing andspaced from the abutment to provide therewith a port adapted tocommunicate with the former port, a sliding sleeve valve surrounding thesecond section, and connections for'moving said sleeve into and out ofsaid annular space.

5. In an internal combustion engine, the combination, with a cylinder,of a valve casing having a port intermediate of its ends communicatingwith said cylinder, a liner sleeve wthin said casing havin aport adaptedto communicate with the rst mentioned port, a sliding valve sleeveinterposed between the liner sleeve and the valve casing, means forreciprocating said sleeve, and connections for supplying lubricatingfluid to the exterior of the sleeve at a point outside of the valvecasing.

6. In an internal combustion engine, the combination, with a cylinder,of a valve casing having a port intermediate of its ends communicatingwith said cylinder, a liner ing, means including a shaft forreciprocating the valve sleeve, a casing inclosing the shaft and theadjacent portion of the valve sleeve, and an oil pipe projecting throughsaid casing and adapted to deliver oil upon the valve sleeve.

7. In an internal combustion engine, the combination, with a cylinder,of a valve casing having a port intermediate of its ends communicatingwith said cylinder, a liner sleeve within said casing having a. portadapted to communicate with the first mentioned port, a sliding sleeveinterposed between the liner sleeve and the valve casing, meansincluding a lay shaft for reciprocating the valve sleeve, a casinginclosing the shaft and the adjacent portions of the valve and linersleeves, and an oil supply arranged to deliver oil upon the outersurface of the valve sleeve and upon the liner sleeve.

In testimony whereof, I hereunto. afiix' my signature in the presence oftwo wit nesses.

THOMAS J. FAY.

Witnesses JOHN B. HULL, BRENNAN B. WEST.

